RAKOWSKI, Andrzej, and Jerzy ERDMAN. “The Application of Organ Sound in Reverberation Measurement in the Concert Hall of the Warsaw Academy of Music”. Archives of Acoustics 2, no. 2 (March 7, 2016): 105–113. Accessed January 11, 2026. https://acoustics.ippt.pan.pl/index.php/aa/article/view/3474.